Valnerina

Valnerina is a valley located in Umbria, Italy.

History
A valley formed by the Italian Nera River in the mountains of Umbria, the Valnerina was known for its winding roads and steep narrow passes. It was a particularly challenging landscape to navigate. In 1503, Ezio Auditore da Firenze entered the fortress in the valley and burnt the plans for Leonardo da Vinci's Flying Machine before bombing the factory there and other manufacturing points.